This famous Jesuit school, where James Joyce, John Redmond and Thomas Francis Meagher all studied, was a 15th Century Eustace Castle, built to defend The Pale - a double ditch separating English settled land from Gaelic Ireland. Sections of the Pale can still be seen here. Clongowes and Rathcoffey Castles were home to the remarkable Browne and Wogan families, commemorated in the Abbey Garden .